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# https://pubs.opengroup.org/onlinepubs/9799919799/utilities/find.html
#
# Only a <plus-sign> that immediately follows an argument containing only
# the two characters "{}" shall punctuate the end of the primary expression.
# Other uses of the <plus-sign> shall not be treated as special.
# ...
# If a utility_name or argument string contains the two characters "{}", but
# not just the two characters "{}", it is implementation-defined whether
# find replaces those two characters or uses the string without change.
invoke_bfs basic -exec printf '%s %s %s %s\n' {} {}+ +{} + \; | sed 's/ .*//' >"$OUT"
sort_output
diff_output
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